<?php
/**
 * XOOPS Kernel Class
 *
 * You may not change or alter any portion of this comment or credits
 * of supporting developers from this source code or any supporting source code
 * which is considered copyrighted (c) material of the original comment or credit authors.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * @copyright       The XOOPS Project http://sourceforge.net/projects/xoops/
 * @license         GNU GPL 2 (http://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
 * @package         kernel
 * @since           2.0.0
 * @author          Kazumi Ono (AKA onokazu) http://www.myweb.ne.jp/, http://jp.xoops.org/
 * @version         $Id: block.php 4941 2010-07-22 17:13:36Z beckmi $
 */
defined('XOOPS_ROOT_PATH') or die('Restricted access');

/**
 * A block
 *
 * @author Kazumi Ono <onokazu@xoops.org>
 *
 * @package kernel
 */
class XoopsBlock extends XoopsObject
{
    /**
     * constructor
     *
     * @param mixed $id
     **/
    function XoopsBlock($id = null)
    {
        $this->initVar('bid', XOBJ_DTYPE_INT, null, false);
        $this->initVar('mid', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('func_num', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('options', XOBJ_DTYPE_TXTBOX, null, false, 255);
        $this->initVar('name', XOBJ_DTYPE_TXTBOX, null, true, 150);
        //$this->initVar('position', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('title', XOBJ_DTYPE_TXTBOX, null, false, 150);
        $this->initVar('content', XOBJ_DTYPE_TXTAREA, null, false);
        $this->initVar('side', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('weight', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('visible', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('block_type', XOBJ_DTYPE_OTHER, null, false);
        $this->initVar('c_type', XOBJ_DTYPE_OTHER, null, false);
        $this->initVar('isactive', XOBJ_DTYPE_INT, null, false);
        $this->initVar('dirname', XOBJ_DTYPE_TXTBOX, null, false, 50);
        $this->initVar('func_file', XOBJ_DTYPE_TXTBOX, null, false, 50);
        $this->initVar('show_func', XOBJ_DTYPE_TXTBOX, null, false, 50);
        $this->initVar('edit_func', XOBJ_DTYPE_TXTBOX, null, false, 50);
        $this->initVar('template', XOBJ_DTYPE_OTHER, null, false);
        $this->initVar('bcachetime', XOBJ_DTYPE_INT, 0, false);
        $this->initVar('last_modified', XOBJ_DTYPE_INT, 0, false);

        // for backward compatibility
        if (isset($id)) {
            if (is_array($id)) {
                $this->assignVars($id);
            } else {
                $blkhandler =& xoops_gethandler('block');
                $obj =& $blkhandler->get($id);
                foreach(array_keys($obj->getVars()) as $i) {
                    $this->assignVar($obj->getVar($i, 'n'));
                }
            }
        }
    }


    /**
     * Returns Class Base Variable bid
     */
    function id($format = 'N')
    {
        return $this->getVar('bid', $format);
    }

    /**
     * Returns Class Base Variable bid
     */
    function bid($format = '')
    {
        return $this->getVar('bid', $format);
    }

    /**
     * Returns Class Base Variable mid
     */
    function mid($format = '')
    {
        return $this->getVar('mid', $format);
    }

    /**
     * Returns Class Base Variable func_num
     */
    function func_num($format = '')
    {
        return $this->getVar('func_num', $format);
    }

    /**
     * Returns Class Base Variable avatar_id
     */
    function options($format = '')
    {
        return $this->getVar('options', $format);
    }

    /**
     * Returns Class Base Variable name
     */
    function name($format = '')
    {
        return $this->getVar('name', $format);
    }

    /**
     * Returns Class Base Variable title
     */
    function title($format = ''){
        return $this->getVar('title', $format);
    }

    /**
     * Returns Class Base Variable content
     */
    function content($format = '')
    {
        return $this->getVar('content', $format);
    }

    /**
     * Returns Class Base Variable side
     */
    function side($format = '')
    {
        return $this->getVar('side', $format);
    }

    /**
     * Returns Class Base Variable weight
     */
    function weight($format = '')
    {
        return $this->getVar('weight', $format);
    }

    /**
     * Returns Class Base Variable visible
     */
    function visible($format = '')
    {
        return $this->getVar('visible', $format);
    }

    /**
     * Returns Class Base Variable block_type
     */
    function block_type($format = '')
    {
        return $this->getVar('block_type', $format);
    }

    /**
     * Returns Class Base Variable c_type
     */
    function c_type($format = '')
    {
        return $this->getVar('c_type', $format);
    }

    /**
     * Returns Class Base Variable isactive
     */
    function isactive($format = '')
    {
        return $this->getVar('isactive', $format);
    }

    /**
     * Returns Class Base Variable dirname
     */
    function dirname($format = '')
    {
        return $this->getVar('dirname', $format);
    }

    /**
     * Returns Class Base Variable func_file
     */
    function func_file($format = '')
    {
        return $this->getVar('func_file', $format);
    }

    /**
     * Returns Class Base Variable show_func
     */
    function show_func($format= '')
    {
        return $this->getVar('show_func', $format);
    }

    /**
     * Returns Class Base Variable edit_func
     */
    function edit_func($format = '')
    {
        return $this->getVar('edit_func', $format);
    }

    /**
     * Returns Class Base Variable template
     */
    function template($format = '')
    {
        return $this->getVar('template', $format);
    }

    /**
     * Returns Class Base Variable avatar_id
     */
    function bcachetime($format = '')
    {
        return $this->getVar('bcachetime', $format);
    }

    /**
     * Returns Class Base Variable last_modified
     */
    function last_modified($format = '')
    {
        return $this->getVar('last_modified', $format);
    }

    /**
     * return the content of the block for output
     *
     * @param string $format
     * @param string $c_type type of content<br>
     * Legal value for the type of content<br>
     * <ul><li>H : custom HTML block
     * <li>P : custom PHP block
     * <li>S : use text sanitizater (smilies enabled)
     * <li>T : use text sanitizater (smilies disabled)</ul>
     * @return string content for output
     */
    function getContent($format = 'S', $c_type = 'T')
    {
        switch ($format) {
            case 'S':
                if ($c_type == 'H') {
                    return str_replace('{X_SITEURL}', XOOPS_URL . '/', $this->getVar('content', 'N'));
                } else if ($c_type == 'P') {
                    ob_start();
                    echo eval($this->getVar('content', 'N'));
                    $content = ob_get_contents();
                    ob_end_clean();
                    return str_replace('{X_SITEURL}', XOOPS_URL . '/', $content);
                } else if ($c_type == 'S') {
                    $myts =& MyTextSanitizer::getInstance();
                    $content = str_replace('{X_SITEURL}', XOOPS_URL . '/', $this->getVar('content', 'N'));
                    return $myts->displayTarea($content, 0, 1);
                } else {
                    $myts =& MyTextSanitizer::getInstance();
                    $content = str_replace('{X_SITEURL}', XOOPS_URL . '/', $this->getVar('content', 'N'));
                    return $myts->displayTarea($content, 0, 0);
                }
                break;
            case 'E':
                return $this->getVar('content', 'E');
                break;
            default:
                return $this->getVar('content', 'N');
                break;
        }
    }

    /**
     * (HTML-) form for setting the options of the block
     *
     * @return string HTML for the form, FALSE if not defined for this block
     */
    function getOptions()
    {
        if (!$this->isCustom()) {
            $edit_func = $this->getVar('edit_func');
            if (!$edit_func) {
                return false;
            }
            if (file_exists(XOOPS_ROOT_PATH . '/modules/' . $this->getVar('dirname') . '/blocks/' . $this->getVar('func_file'))) {
                if (file_exists(XOOPS_ROOT_PATH . '/modules/' . $this->getVar('dirname') . '/language/' . $GLOBALS['xoopsConfig']['language'] . '/blocks.php')) {
                    include_once XOOPS_ROOT_PATH . '/modules/' . $this->getVar('dirname') . '/language/' . $GLOBALS['xoopsConfig']['language'] . '/blocks.php';
                } else if (file_exists(XOOPS_ROOT_PATH . '/modules/' . $this->getVar('dirname') . '/language/english/blocks.php')) {
                    include_once XOOPS_ROOT_PATH . '/modules/' . $this->getVar('dirname') . '/language/english/blocks.php';
                }
                include_once XOOPS_ROOT_PATH . '/modules/' . $this->getVar('dirname') . '/blocks/' . $this->getVar('func_file');
                $options = explode('|', $this->getVar('options'));
                $edit_form = $edit_func($options);
                if (!$edit_form) {
                    return false;
                }
                return $edit_form;
            } else {
                return false;
            }
        } else {
            return false;
        }
    }

    function isCustom()
    {
        return in_array($this->getVar("block_type"), array(
            'C' ,
            'E'));
    }
}

/**
 * XOOPS block handler class. (Singelton)
 *
 * This class is responsible for providing data access mechanisms to the data source
 * of XOOPS block class objects.
 *
 * @author  Kazumi Ono <onokazu@xoops.org>
 * @copyright copyright (c) 2000 XOOPS.org
 * @package kernel
 * @subpackage block
 */
class XoopsBlockHandler extends XoopsObjectHandler
{
    /**
     * create a new block
     *
     * @see XoopsBlock
     * @param bool $isNew is the new block new??
     * @return object XoopsBlock reference to the new block
     **/
    function &create($isNew = true)
    {
        $block = new XoopsBlock();
        if ($isNew) {
            $block->setNew();
        }
        return $block;
    }

    /**
     * retrieve a specific {@link XoopsBlock}
     *
     * @see XoopsBlock
     * @param int $id bid of the block to retrieve
     * @return object XoopsBlock reference to the block
     **/
    function &get($id)
    {
        $block = false;
        $id = intval($id);
        if ($id > 0) {
            $sql = 'SELECT * FROM ' . $this->db->prefix('newblocks') . ' WHERE bid=' . $id;
            if ($result = $this->db->query($sql)) {
                $numrows = $this->db->getRowsNum($result);
                if ($numrows == 1) {
                    $block = new XoopsBlock();
                    $block->assignVars($this->db->fetchArray($result));
                }
            }
        }
        return $block;
    }

    /**
     * write a new block into the database
     *
     * @param object XoopsBlock $block reference to the block to insert
     * @return bool TRUE if succesful
     **/
    function insert(&$block)
    {
        /**
         * @TODO: Change to if (!(class_exists($this->className) && $obj instanceof $this->className)) when going fully PHP5
         */
        if (!is_a($block, 'xoopsblock')) {
            return false;
        }
        if (!$block->isDirty()) {
            return true;
        }
        if (!$block->cleanVars()) {
            return false;
        }
        foreach ($block->cleanVars as $k => $v) {
            ${$k} = $v;
        }
        if ($block->isNew()) {
            $bid = $this->db->genId('newblocks_bid_seq');
            $sql = sprintf("INSERT INTO %s (bid, mid, func_num, options, name, title, content, side, weight, visible, block_type, c_type, isactive, dirname, func_file, show_func, edit_func, template, bcachetime, last_modified) VALUES (%u, %u, %u, '%s', '%s', '%s', '%s', %u, %u, %u, '%s', '%s', %u, '%s', '%s', '%s', '%s', '%s', %u, %u)", $this->db->prefix('newblocks'), $bid, $mid, $func_num, $options, $name, $title, $content, $side, $weight, $visible, $block_type, $c_type, 1, $dirname, $func_file, $show_func, $edit_func, $template, $bcachetime, time());
        } else {
            $sql = sprintf("UPDATE %s SET func_num = %u, options = '%s', name = '%s', title = '%s', content = '%s', side = %u, weight = %u, visible = %u, c_type = '%s', isactive = %u, func_file = '%s', show_func = '%s', edit_func = '%s', template = '%s', bcachetime = %u, last_modified = %u WHERE bid = %u", $this->db->prefix('newblocks'), $func_num, $options, $name, $title, $content, $side, $weight, $visible, $c_type, $isactive, $func_file, $show_func, $edit_func, $template, $bcachetime, time(), $bid);
        }
        if (!$result = $this->db->query($sql)) {
            return false;
        }
        if (empty($bid)) {
            $bid = $this->db->getInsertId();
        }
        $block->assignVar('bid', $bid);
        return true;
    }

    /**
     * delete a block from the database
     *
     * @param object XoopsBlock $block reference to the block to delete
     * @return bool TRUE if succesful
     **/
    function delete(&$block)
    {
        /**
         * @TODO: Change to if (!(class_exists($this->className) && $obj instanceof $this->className)) when going fully PHP5
         */
        if (!is_a($block, 'xoopsblock')) {
            return false;
        }
        $id = $block->getVar('bid');
        $sql = sprintf("DELETE FROM %s WHERE bid = %u", $this->db->prefix('newblocks'), $id);
        if (!$result = $this->db->query($sql)) {
            return false;
        }
        $sql = sprintf("DELETE FROM %s WHERE block_id = %u", $this->db->prefix('block_module_link'), $id);
        $this->db->query($sql);
        return true;
    }

    /**
     * retrieve array of {@link XoopsBlock}s meeting certain conditions
     * @param object $criteria {@link CriteriaElement} with conditions for the blocks
     * @param bool $id_as_key should the blocks' bid be the key for the returned array?
     * @return array {@link XoopsBlock}s matching the conditions
     **/
    function getObjects($criteria = null, $id_as_key = false)
    {
        $ret = array();
        $limit = $start = 0;
        $sql = 'SELECT DISTINCT(b.bid), b.* FROM ' . $this->db->prefix('newblocks') . ' b LEFT JOIN ' . $this->db->prefix('block_module_link') . ' l ON b.bid=l.block_id';
        if (isset($criteria) && is_subclass_of($criteria, 'criteriaelement')) {
            $sql .= ' ' . $criteria->renderWhere();
            $limit = $criteria->getLimit();
            $start = $criteria->getStart();
        }
        $result = $this->db->query($sql, $limit, $start);
        if (!$result) {
            return $ret;
        }
        while ($myrow = $this->db->fetchArray($result)) {
            $block = new XoopsBlock();
            $block->assignVars($myrow);
            if (!$id_as_key) {
                $ret[] =& $block;
            } else {
                $ret[$myrow['bid']] = & $block;
            }
            unset($block);
        }
        return $ret;
    }

    /**
     * get a list of blocks matchich certain conditions
     *
     * @param string $criteria conditions to match
     * @return array array of blocks matching the conditions
     **/
    function getList($criteria = null)
    {
        $blocks = $this->getObjects($criteria, true);
        $ret = array();
        foreach(array_keys($blocks) as $i) {
            $name = (!$blocks[$i]->isCustom()) ? $blocks[$i]->getVar('name') : $blocks[$i]->getVar('title');
            $ret[$i] = $name;
        }
        return $ret;
    }

     ##################### Deprecated Methods ######################

    /**#@+
     * @deprecated
     */
    function getByModule($moduleid, $asobject = true, $id_as_key = false)
    {
        trigger_error(__CLASS__ . "::" . __FUNCTION__ . ' is deprecated', E_USER_WARNING);
        return false;
    }

    function getAllByGroupModule($groupid, $module_id = 0, $toponlyblock = false, $visible = null, $orderby = 'i.weight,i.instanceid', $isactive = 1)
    {
        trigger_error(__CLASS__ . "::" . __FUNCTION__ . ' is deprecated', E_USER_WARNING);
        return false;
    }

    function getAdminBlocks($groupid, $orderby='i.weight,i.instanceid')
    {
        trigger_error(__CLASS__ . "::" . __FUNCTION__ . ' is deprecated', E_USER_WARNING);
        return false;
    }

    function assignBlocks()
    {
        trigger_error(__CLASS__ . "::" . __FUNCTION__ . ' is deprecated', E_USER_WARNING);
        return false;
    }
    /**#@-*/
}
?>